GUARANTEED QUALITY: Quality is our top priority, so all our bathroom sink faucets are tested and certified, meeting or exceeding industry codes and standards VESSEL SINK BATHROOM FAUCET: Fits 1-hole installations with gasket seal helps prevent drips and splashes from leaking under the bathroom sink faucet RELIABLE VALVE: Ceramic valve disc is tested to last at least 500,000 uses to ensure high performance with less drips and a smooth bathroom faucet handle operation. CORROSION-RESISTANT FINISH: Our Brilliance finishes are intentionally engineered for durability and tested for corrosion resistance to at least 2 times industry standards TESTED AND CERTIFIED: All Delta bathroom faucet finishes are third-party certified and vigorously tested under extreme conditions to ensure years of dependable use without cracking, peeling, chipping, blistering or changing color over time EASY-TO-CLEAN DRAIN: Metal push pop-up drain (RP101632PC) sold separately You can install with confidence, knowing Delta bathroom faucets are backed by Delta Faucet's Lifetime Limited Warranty